Anatomy Flashcards
Major skull sutures
Coronal, Sagittal, Lambdoid
Junctions
Bregma, Lambda, Pterion, Asterion
Fontanelles are
membranous gaps that exist between skull bondes in the newborn
Metopic suture
between the 2 frontal bones
Le fort fracture
fracture of the maxilla
Anterior fossa is occupied by
frontal lobe
Middle fossa is occupied by
temporal lobe
Posterior fossa is occupied by
cerebellum and brainstem
Basilar skull fracture
fracture most commonly of the temporal bones from blunt force trauma
Symptoms of basilar skull fracture
bruising behind ears or around eyes, blood behind ear drum, CSF leak from nose or ear
bones of the anterior cranial fossa
frontal, ethmoid, sphenoid
key features of the anterior cranial fossa
cribriform plate and foramina, crista galli, frontal crest
bones of the middle cranial fossa
sphenoid, temporal
key features of the middle cranial fossa
optic canal, hypophyseal fossa, superior orbital fissure, foramen rotundum, foramen ovale, foramen spinosum, carotid canal
posterior cranial fossa bones
temporal and occipital
key features of the posterior cranial fossa
foramen magnum, grooves for sigmoid and transverse dural sinuses, internal acoustic meatus, jugular foramen, hypoglossal canal, internal occipital protuberance
CN 1
olfactory
CN 1 foramen
cribriform plate
CN 2
optic
CN 2 foramen
optic canal
CN 3
oculomotor
CN 3 foramen
superior orbital fissure
CN 4
trochlear
CN 4 foramen
superior orbital fissure
CN 5
trigeminal
CN 5 foramen
V1-superior orbital fissure
V2- foramen rotundum
V3- foramen ovale
CN 6
abducent
CN 6 foramen
superior orbital fissure
CN 7
facial
CN 7 forman
stylomastoid foramen
CN 8
vestibulocochlear
CN 8 foramen
internal acoustic meatus
CN 9
glossopharyngeal
CN 9 foramen
jugular foramen
CN 10
vagus
CN 10 foramen
jugular foramen
CN 11
spinal accessory
CN 11 foramen
jugular foramen
CN 12
hypoglossal
CN 12 foramen
hypoglossal canal
Carotid canal contains
internal carotid artery
foramen spinosum contains
middle meningeal artery
Optic canal contains
optic nerve and ophthalmic artery
Superior orbital fissure contains
CN 3, 4, 5, 6 and superior ophthalmic vein
2 layers of the dura
periosteal (outer) and meningeal (inner)